You install an application named App1.exe on a computer. After the installation, the computer becomesunresponsive. You restart the computer and attempt to uninstall App1.exe. The uninstallation of App1.exefails. You need to restore the computer to its previous functional state. You must achieve this goal by usingthe minimum amount of administrative effort.  What should you do?（）

• A、From Recovery， restore a system restore point.
• B、From the Previous Versions tab of App1.exe， click the Restore button.
• C、Start the computer， press F8 and then use the Last Known Good Configuration.
• D、Create a system repair disc and then start the computer from the system repair disc.